* A liveness interval border.
*/
struct border_t {
- DEBUG_ONLY(unsigned magic;) /**< A magic number for checking. */
struct list_head list; /**< list head for queuing. */
- border_t *other_end; /**< The other end of the border. */
ir_node *irn; /**< The node. */
unsigned step; /**< The number equal to the interval border. */
- unsigned pressure; /**< The pressure at this interval border. (The border itself is counting). */
unsigned is_def : 1; /**< Does this border denote a use or a def. */
unsigned is_real : 1; /**< Is the def/use real? Or is it just
inserted at block beginnings or ends